How do you find $f(-3)$ given $f(x)=2x+2$ ?

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Answer 1 · 2018-03-12T01:32:51

$f(-3)=-4$

Simply substitute the value of $-3$ given. In other words, $f(-3)$ is the function of $f(x)$ , however in this case, $x$ is $-3$

$f(-3)=2(-3)+2$

Distribute $2$ through the parenthesis

$f(-3)=-6+2$

Simplify

$f(-3)=-4$

Answer 2 · 2018-03-12T01:43:24

$-4$

We can substitute $-3$ for $x$ and simplify:
$f(x)=2x+2$
$f(-3)=2(-3)+2$
$f(-3)=-6+2$
$f(-3)=-4$
So $f(-3)=-4$ .

How do you find f(-3)f(-3) given f(x)=2x+2f(x)=2x+2?